How do oval chain rings compare with Cranktip pedals?

The
oval
chain
ring
essentially
provides
a
constantly
bearing
ratio
during
rotation,
this
being
a
ratio
trade
off
system.
It
essentially
provides
greater
leverage
at
the
earlier
and
later
stages
of
rotation,
the
trade
off
however
being
less
leverage
or
torque
during
mid
rotation.
Whilst
an
oval
chain
ring
manipulates
the
forces
created
by
the
crank
arm,
the
overall
energy
provided
by
the
crank
system
is
ultimately
limited
by
the
length
of
the
crank
arm.

The
main
fundamental
difference
provided
by
Cranktip
pedals
is
that
whilst
the
oval
chain
ring
concept
is
limited
by
the
length
of
the
crank
arm,
the
Cranktip
pedal
simply
increases
the
actual
overall
crank
arm
length
to
provide
greater
torque
regardless
of
the
chain
ring
being
oval
shaped
or
round.
Also
and
most
importantly,
it
achieves
the
greater
leverage
and
resulting
torque
whilst
maintaining
the
identical
pedal
crank
distance
and
foot
speed
that
the
same
crank
arm
would
normally
experience
when
fitted
with
a
traditional
pedal.
In
a
nutshell
and
to
simply
quantify
the
difference,
the
Cranktip
pedal
provides
greater
leverage
and
torque
beyond
the
normal
length
and
leverage
of
a
crank
arm
to
which
it’s
fitted,
whilst
an
oval
chain
ring
concept
provides
varying
amounts
of
torque
within
the
length
and
leverage
of
a
crank
arm.